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Mendelian Genetics

Total questions: 24

Worksheet time: 24mins

Name
Class
Date
1.

The study of heredity

a)

Genetics

b)

Genome

c)

Allele

d)

Punnett Square

2.

The instruction of one allele covers up the instruction

of the other allele in a homologous pair. Symbolized by a capital letter.

a)

Recessive Allele

b)

Dominant Allele

c)

Heredity

d)

Trait

3.

The letter symbols for both homologous alleles.

BB Bb bb AA Aa aa

a)

Genotype

b)

Phenotype

c)

Recessive

d)

Dominant

4.

The observable traits dictated by the genotype

a)

Phenotype

b)

Genotype

c)

Homozygous Recessive

d)

Homozygous Dominant

5.

During meiosis and gamete formation, homologous (paired up) alleles split up

a)

Phenotype

b)

Law of Segregation

c)

Genotype

d)

Dihybrid Cross

6.

The genetic cross between two parents for one trait:

Example BB x bb

B = dominant for brown

b = recessive for blue

a)

Incomplete Dominance

b)

Dihybrid Cross

c)

Monohybrid Cross

d)

Iron Cross

7.

Referring to the original parents.

a)

P1

b)

F1

c)

F2

d)

Homozygous

8.

First Filial (child) Generation: the offspring of P1

a)

P1

b)

F2

c)

F1

d)

Heterozygous

9.

The chance that a genotype or phenotype

will actually occur in offspring

a)

Probability

b)

Phenotype

c)

Genotype

d)

Homozygous Recessive

10.

Who is the "father" of modern genetics?

a)

Gregor Mendel

b)

Andreas Vesalius

c)

James Watson

d)

Charles Darwin

11.

a trait that is always expressed if present is _____________________

a)

Recessive

b)

Dominant

c)

Strong

d)

True

12.

alleles for a trait that are the different

a)

Homozygous

b)

Heterozygous

c)

Quasizygous

d)

Juxtazygous

13.

Law of independent assortment states:

a)

the two alleles for each trait separate during meiosis

b)

the two alleles for each trait separate during mitosis

c)

a random distribution of alleles occur during gamete formation

d)

a ordered distribution of alleles occur during gamete formation

14.

What genotype is homozygous dominant?

a)

RR

b)

Rr

c)

rr

15.
A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance.  What percentage of the offspring will have pink (RW) flowers?
a)
0%
b)
25%
c)
50%
d)
100%
16.
Which of the following alleles is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
17.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
18.

In fruit flies, normal wings (N) are dominant to short, vestigial wings (n). If two heterozygous normal fruit flies mates and produce 400 offspring, how many are expected to have short wings?

a)

400

b)

300

c)

200

d)

100

e)

0

19.
In watermelons, green rinds (G) are dominant to striped rinds (g).  What is the genotype of a heterozygous green watermelon?
a)
GG
b)
Gg
c)
gg
d)
green
20.

In guinea pigs, short hair (H) is dominant to long hair. If a short-haired guinea pig and a long-haired guinea pig have 220 offspring and 105 have long hair, what are the parental genotypes?

a)

HH x Hh

b)

hh x hh

c)

Hh x Hh

d)

HH x hh

e)

Hh x hh

21.
What goes in box 3
a)
Aabb
b)
AABB
c)
AAbb
d)
aaBb
22.

Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?

a)

9/16

b)

3/16

c)

1/16

d)

16/16

23.
What gamete possibilities could come from this parent's genotype?
a)
AB, AB, aB, aB
b)
Ab, AB, Ab, ab
c)
Ab, Ab, Ab, Ab
d)
AB, aB, ab, aB
24.
Hemophilia is a recessive sex-linked trait. If H = normal & h = has hemophilia, which genotype represents a male with hemophilia. 
a)
XHY
b)
XHXh
c)
XhXh
d)
XhY 

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